(19)
(11) EP 2 091 237 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
02.06.2010 Bulletin 2010/22

(43) Date of publication A2:
19.08.2009 Bulletin 2009/34

(21) Application number: 09250341.6

(22) Date of filing: 11.02.2009
(51) International Patent Classification (IPC): 
H04N 5/235(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR
Designated Extension States:
AL BA RS

(30) Priority: 14.02.2008 JP 2008033586

(71) Applicant: Ricoh Company, Ltd.
Ohta-ku Tokyo 143-8555 (JP)

(72) Inventor:
  • Kawasaki, Toshiyuki
    Yokohama-shi Kanagawa (JP)

(74) Representative: Mounteney, Simon James 
Marks & Clerk LLP 90 Long Acre
London WC2E 9RA
London WC2E 9RA (GB)

   


(54) Image pickup device


(57) An image pickup device includes an optical system; an image sensor; an AGC circuit; an image processing unit configured to perform at least an MTF correction process; and a control unit configured to control the image processing unit so as not to perform the MTF correction process in the event that the control unit determines that illuminance is low based on information which directly or indirectly indicates the illuminance.







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